CN201787434U - Backlight source device and liquid crystal display - Google Patents
Backlight source device and liquid crystal display Download PDFInfo
- Publication number
- CN201787434U CN201787434U CN2010202810335U CN201020281033U CN201787434U CN 201787434 U CN201787434 U CN 201787434U CN 2010202810335 U CN2010202810335 U CN 2010202810335U CN 201020281033 U CN201020281033 U CN 201020281033U CN 201787434 U CN201787434 U CN 201787434U
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- Prior art keywords
- groove
- lgp
- liquid crystal
- light guide
- backlight
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- 239000004973 liquid crystal related substance Substances 0.000 title abstract description 14
- 238000011161 development Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000005142 aphototropism Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of liquid crystal displays, and discloses a backlight source device and a liquid crystal display. The backlight source device comprises at least two light guide plates, and a first groove used for accommodating a lamp tube is arranged between the light guide plates. A large light guide plate is divided into at least two small light guide plates of the backlight source device, the first groove for accommodating the lamp tube is arranged between each two small light guide plates, and light of the lamp tubes is evenly led out of light emitting surfaces of the light guide plates by the aid of the small light guide plates after the lamp tubes are placed into the first grooves. Embodiments of the backlight source device and the liquid crystal display not only can lead to lightweight and thinness of a backlight module and can adapt to a large-sized liquid crystal screen by combining the small light guide plates in a lateral backlight manner, but also can guarantee brightness of the backlight module, and are favorable for development of liquid crystal display technology.
Description
Technical field
The utility model belongs to technical field of liquid crystal display, is specifically related to a kind of backlight arrangement and LCD.
Background technology
Along with the continuous development of liquid crystal technology, the user is also more and more higher to the demand of LCD TV.
With the LCD TV is example, and the LCDs of LCD TV is passive luminous display screen, and liquid crystal itself is non-luminous, and LCDs needs module backlight that light source is provided.Divide according to the light source of module backlight, can be divided into cold-cathode fluorescence lamp (Cold Cathode Fluorescent Lamps, CCFL) module backlight, light emitting diode (Light Emitting Diode, LED) module backlight etc.
Light source position according to module backlight is divided, and module backlight can be divided into edge-lit-backlights module and down straight aphototropism mode set again.Wherein, the edge-lit-backlights module is applied to the LCDs of small-medium size, and down straight aphototropism mode set is used for large-sized LCDs.
Because the fluorescent tube of edge-lit-backlights module is arranged on the both sides of LGP, the edge-lit-backlights module can be accomplished very thin; Down straight aphototropism mode set in order to guarantee the uniformity of brightness, generally need be stayed certain clearance because light source is arranged on the bottom.
In the prior art, the thickness limit of down straight aphototropism mode set is 25mm, and need use more expensive diffuser plate and remove to block lamp shadow, if required thickness less than 25mm, by the design of blooming piece, all can not be eliminated the lamp shadow of fluorescent tube in any case.So the minimal thickness of general down straight aphototropism mode set is approximately 25mm-30mm.And the edge-lit-backlights module is being used for large-sized the time, because area is bigger, the side distance center is far away, no matter how LGP designs and be difficult to usually make center brightness even, center brightness also can be lower simultaneously.
How providing a kind of and can either make that module backlight is lightening, can guarantee the brightness of module backlight again, is one of direction of technical field of liquid crystal display research.
The utility model content
The purpose of this utility model is to provide a kind of backlight arrangement, is intended to make that module backlight is lightening, can guarantee the brightness of module backlight again.
The utility model embodiment is achieved in that a kind of backlight arrangement, and described device comprises at least two LGP, is provided with first groove that is used to place fluorescent tube between the described LGP.
The backlight arrangement that the utility model embodiment provides, wherein, described device also comprises backboard, and described LGP and described backboard junction are provided with second groove that is used to place fluorescent tube, and described second groove is stepped.
The backlight arrangement that the utility model embodiment provides, wherein, described device also comprises exiting surface, described first groove and described exiting surface junction are provided with and are used for first through hole that light is spread.
The backlight arrangement that the utility model embodiment provides, wherein, described device also includes housing, and described LGP and described housing junction are provided with the 3rd groove of placing fluorescent tube, and described the 3rd groove and described exiting surface junction are provided with and are used for second through hole that light is spread.
The utility model embodiment also provides a kind of LCD, and described LCD comprises a backlight arrangement, and described device comprises at least two LGP, is provided with first groove that is used to place fluorescent tube between the described LGP.
The LCD that the utility model embodiment provides, wherein, described device also comprises backboard, and described LGP and described backboard junction are provided with second groove that is used to place fluorescent tube, and described second groove is stepped.
The LCD that the utility model embodiment provides, wherein, described device also comprises exiting surface, described first groove and described exiting surface junction are provided with and are used for first through hole that light is spread.
The LCD that the utility model embodiment provides, wherein, described device also includes housing, and described LGP and described housing junction are provided with the 3rd groove of placing fluorescent tube, and described the 3rd groove and described exiting surface junction are provided with and are used for second through hole that light is spread.
The utility model embodiment is by being divided into a big LGP at least two little LGP, be provided with first groove that is used to place fluorescent tube between each little LGP, after fluorescent tube is positioned over first groove, utilize each little LGP that the light of each fluorescent tube is evenly led the exiting surface of locating to LGP, the utility model embodiment is by the side combination backlight of a plurality of little LGPs, can either make that module backlight is lightening, can adapt to large-sized liquid crystal display, can guarantee the brightness of module backlight again, be beneficial to the development of lcd technology.
Description of drawings
The structure chart of the backlight arrangement that Fig. 1 provides for the utility model embodiment;
Fig. 2 is the overall structure figure of LGP in the backlight arrangement of the utility model embodiment;
Fig. 3 is the installation embodiment schematic diagram of LGP in the backlight arrangement of the utility model embodiment;
Fig. 4 is that another of LGP installed the embodiment schematic diagram in the backlight arrangement of the utility model embodiment.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the structure of the backlight arrangement that the utility model embodiment provides.
Described device comprises at least two LGP 11, is provided with first groove 12 that is used to place the CCFL fluorescent tube between the described LGP 11.
Described device also comprises backboard 13, and preferred, the backboard 13 of the utility model embodiment is a metal backing 13, and reflectance coating 20 is arranged on the metal backing 13.
Described LGP 11 is provided with second groove 14 that is used to place fluorescent tube with described backboard 13 junctions, and described second groove 14 is stepped.Wherein, described stairstepping is the right angle ladder.And in specific implementation process, fluorescent tube is parallel with the vertical plane of LGP ladder.
Described device also comprises exiting surface 15, and described first groove 12 and described exiting surface 15 junctions are provided with and are used for first through hole 16 that light is spread.
Described device also includes housing 17, and described LGP 11 is provided with the 3rd groove 18 of placing fluorescent tube with described housing 17 junctions, and described the 3rd groove 18 and described exiting surface 15 junctions are provided with and are used for second through hole 19 that light is spread.
Wherein, described exiting surface 15 comprises increment film 151, diffusion barrier 152, liquid crystal cell line (CELL) 153 and prism film 154.
Operation principle of the present utility model is:
A big LGP by a plurality of little LGPs 11 are formed is provided with first groove 12 at each little LGP 11 intersections, is used to place the CCFL fluorescent tube; LGP 11 is provided with stepped second groove 14 with the intersection of metal backing 13, is used to place the CCFL fluorescent tube.Utilize each little LGP 11 that the light of each CCFL fluorescent tube is evenly exported to exiting surface 15.
Fig. 2 is the LGP schematic diagram of the utility model embodiment.
Constitute a LGP that integral body is big by a plurality of LGPs 11, in specific implementation process, can big LGP be divided into a plurality of little LGPs 11 by the method that the area of giant-screen is cut apart, CCFL fluorescent tube 21 is laid in first groove 12, stair-stepping second groove 14 and the 3rd groove 18.
Among Fig. 2, be positioned at directly over the fluorescent tube LGP, have diffusion as first through hole 16 of micro-structural and second through hole 19.
Shown in Figure 3, be a kind of installation embodiment of LGP that the utility model embodiment provides, specifically see also above and describe at Fig. 1.
Shown in Figure 4, be the another kind of embodiment of installation of LGP that the utility model embodiment provides, specifically see also above and describe at Fig. 1.
The utility model embodiment by the combination backlight of the side in each district, can adapt to large-sized LCDs by a very large-sized screen is divided into several region.
The utility model embodiment combines the advantage of down straight aphototropism mode set and edge-lit-backlights module, and the backlight and direct-type backlight of side is merged.The bottom side light of the utility model embodiment module general thickness backlight can be accomplished 10mm-15mm, and technical feasibility is provided for the large scale liquid crystal TV is lightening.
The utility model embodiment also provides a kind of LCD, and described LCD includes the backlight arrangement that the utility model embodiment provides, in view of this backlight arrangement in above existing detailed description, repeat no more herein.
The utility model embodiment is by being divided into a big LGP at least two little LGP, be provided with first groove that is used to place fluorescent tube between each little LGP, after fluorescent tube is positioned over first groove, utilize each little LGP that the light of each fluorescent tube is evenly led the exiting surface of locating to LGP, the utility model embodiment is by the side combination backlight of a plurality of little LGPs, can either make that module backlight is lightening, can adapt to large-sized liquid crystal display, can guarantee the brightness of module backlight again, be beneficial to the development of lcd technology.
Should be understood that, for a person skilled in the art, can be improved according to the above description or conversion, and these improvement and conversion all should belong to the protection domain of the utility model claims.
Claims (8)
1. a backlight arrangement is characterized in that, described device comprises at least two LGP, is provided with first groove that is used to place fluorescent tube between the described LGP.
2. backlight arrangement as claimed in claim 1 is characterized in that described device also comprises backboard, and described LGP and described backboard junction are provided with second groove that is used to place fluorescent tube, and described second groove is stepped.
3. backlight arrangement as claimed in claim 1 is characterized in that described device also comprises exiting surface, and described first groove and described exiting surface junction are provided with and are used for first through hole that light is spread.
4. backlight arrangement as claimed in claim 3, it is characterized in that, described device also includes housing, and described LGP and described housing junction are provided with the 3rd groove of placing fluorescent tube, and described the 3rd groove and described exiting surface junction are provided with and are used for second through hole that light is spread.
5. a LCD is characterized in that, described LCD comprises a backlight arrangement, and described device comprises at least two LGP, is provided with first groove that is used to place fluorescent tube between the described LGP.
6. LCD as claimed in claim 5 is characterized in that described device also comprises backboard, and described LGP and described backboard junction are provided with second groove that is used to place fluorescent tube, and described second groove is stepped.
7. LCD as claimed in claim 5 is characterized in that described device also comprises exiting surface, and described first groove and described exiting surface junction are provided with and are used for first through hole that light is spread.
8. LCD as claimed in claim 7, it is characterized in that, described device also includes housing, and described LGP and described housing junction are provided with the 3rd groove of placing fluorescent tube, and described the 3rd groove and described exiting surface junction are provided with and are used for second through hole that light is spread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202810335U CN201787434U (en) | 2010-07-27 | 2010-07-27 | Backlight source device and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202810335U CN201787434U (en) | 2010-07-27 | 2010-07-27 | Backlight source device and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201787434U true CN201787434U (en) | 2011-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202810335U Expired - Fee Related CN201787434U (en) | 2010-07-27 | 2010-07-27 | Backlight source device and liquid crystal display |
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| Country | Link |
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| CN (1) | CN201787434U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493120A (en) * | 2011-04-28 | 2014-01-01 | 夏普株式会社 | Display manufacturing method, display, and multi-display system |
| CN109830475A (en) * | 2019-02-18 | 2019-05-31 | 南通创亿达新材料股份有限公司 | High colour gamut quantum dot lamp bar, preparation method and its backlight module |
-
2010
- 2010-07-27 CN CN2010202810335U patent/CN201787434U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103493120A (en) * | 2011-04-28 | 2014-01-01 | 夏普株式会社 | Display manufacturing method, display, and multi-display system |
| CN103493120B (en) * | 2011-04-28 | 2016-03-09 | 夏普株式会社 | The manufacture method of display device, display device and multi-display system |
| CN109830475A (en) * | 2019-02-18 | 2019-05-31 | 南通创亿达新材料股份有限公司 | High colour gamut quantum dot lamp bar, preparation method and its backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110406 Termination date: 20130727 |